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What is the longitudinal slope called?(a) Kerb(b) Horizon(c) Grade(d) LiftThis question was posed to me in an internship interview.This is a very interesting question from Estimate of Earthwork by Three Methods topic in division Road Estimating, Sanitary and Water Supply Work of Civil Engineering Drawing

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Right OPTION is (c) Grade

To explain I WOULD SAY: The grade (also called slope, incline, gradient, mainfall, pitch or rise) of a PHYSICAL feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal. It is a special case of the slope, where ZERO indicates horizontality. A larger number indicates higher or steeper degree of “tilt”. Often slope is calculated as a ratio of “rise” to “run”, or as a fraction (“rise over run”) in which run is the horizontal distance and rise is the vertical distance.



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